<template>
<el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
      <div>
            <img src="">
        <span>xx后台管理系统</span>
      </div>
        <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
     <el-container>
        <!-- 侧边栏 -->
            <el-aside :width = "isCollapse ? '48px' :'200px'">
              <div class="toggle-button" @click="toggleCollapse">|||</div>
                <!-- 菜单栏 -->
                <!-- 一级菜单栏 -->
    <el-menu :default-active="avtivePath" router unique-opened :collapse-transition='false' :collapse="isCollapse"   background-color="#333744" text-color="#fff" active-text-color="#409EFF">
      <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
        <template slot="title">
            <i :class="iconsObj[item.id]"></i>
            {{item.authName}}
            </template>
               <!-- 二级菜单 -->
          <el-menu-item @click="saveNavState('/' + subItem.path+ '')" :index="'/' + subItem.path+ ''" v-for="subItem in item.children" :key="subItem.id"> <i class="el-icon-menu"></i>{{subItem.authName}}</el-menu-item>
      </el-submenu>
    </el-menu>
    </el-aside>
            <el-main>
              <router-view></router-view>
            </el-main >
</el-container>
</el-container>

</template>
<script>
export default {
  data () {
    return {
      // 左侧菜单数据
      menulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      // 被激活的地址
      avtivePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.avtivePath = window.sessionStorage.getItem('avtivePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
    },
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (avtivePath) {
      window.sessionStorage.setItem('avtivePath', avtivePath)
      this.avtivePath = avtivePath
    }
  }
}
</script>
<style lang="less" scoped>
.home-container{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left:0;
    align-items: center;
    color:#fff;
    font-size: 20px;
    > div {
        display: flex;
        align-items: center;
        span{
            margin-left: 15px;
        }
    }
}
.el-aside{
    background-color: #333744;
    .el-menu{
    border-right: 0;
    }
}
.el-main{
    background-color: #eaedf1;
}
.iconfont {
    margin-right: 10px;
}
.toggle-button {
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
